Patent US2859660A successfully refreshed from Google Patents.
US2859660A
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US
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Projection device adapted to receive projected images
Assignee: Individual
•
Filing: 1955-11-01
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Granted: 1958-11-11
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Expires: 1975-11-01
Abstract
No abstract record available.
Inventors
- 👤 James W Lucas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:49
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/132; Y; Y10; Y10S; Y10S353/00; Y10S353/03; Y10S353/05
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1545674A
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US1945926A
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US2061378A
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US2250174A
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US2334962A
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US2288143A
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US2488955A
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US2489789A
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US2699704A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-10 | 1962-05-12 | 1962-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-10 | 1966-05-12 | 1966-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-10 | 1970-05-12 | 1970-11-11 | $7700.00 | Window Closed / Lapsed |